title: Prognostic significance of apex axillary invasion for locoregional recurrence and effect of postmastectomy radiotherapy on overall survival in node-positive breast cancer patients.
mesh_terms: D000328:Adult; D000368:Aged; D001365:Axilla; D001943:Breast Neoplasms / Q000401:mortality* / Q000473:pathology* / Q000532:radiotherapy / Q000601:surgery; D015331:Cohort Studies; D003131:Combined Modality Therapy; D016001:Confidence Intervals; D005260:Female; D006801:Humans; D008198:Lymph Nodes / Q000473:pathology*; D015411:Mastectomy, Modified Radical / Q000379:methods; D008875:Middle Aged; D009361:Neoplasm Invasiveness / Q000473:pathology*; D009364:Neoplasm Recurrence, Local / Q000401:mortality* / Q000473:pathology* / Q000628:therapy; D011336:Probability; D011379:Prognosis; D016016:Proportional Hazards Models; D018714:Radiotherapy, Adjuvant; D012189:Retrospective Studies; D018570:Risk Assessment; D016019:Survival Analysis; D016896:Treatment Outcome